A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5975-01-382-9350
NSN 5925-00-951-9232
NSN 5975-01-432-4519
NSN 5910-01-275-6819
NSN 5835-01-447-2544
NSN 5930-01-515-2590
NSN 6220-01-336-3646
NSN 5975-01-478-1262
NSN 6150-01-495-4737
NSN 5999-01-132-7649
NSN 6110-01-281-7274
NSN 5925-01-365-0436